43420957885 has 8 divisors (see below), whose sum is σ = 52118598456. Its totient is φ = 34727800320.

The previous prime is 43420957883. The next prime is 43420957889. The reversal of 43420957885 is 58875902434.

It can be written as a sum of positive squares in 4 ways, for example, as 15071490756 + 28349467129 = 122766^2 + 168373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43420957885 - 2¹ = 43420957883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43420957883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099404 + ... + 1138213.

It is an arithmetic number, because the mean of its divisors is an integer number (6514824807).

Almost surely, 2^43420957885 is an apocalyptic number.

It is an amenable number.

43420957885 is a deficient number, since it is larger than the sum of its proper divisors (8697640571).

43420957885 is a wasteful number, since it uses less digits than its factorization.

43420957885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241503.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 43420957885 in words is "forty-three billion, four hundred twenty million, nine hundred fifty-seven thousand, eight hundred eighty-five".